Search recommending method and device for map searching
A search suggestion and map technology, applied in the search suggestion field of map search, can solve problems such as wasting network traffic and cumbersome operations
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Embodiment 1
[0036] figure 1 The flow chart of the search suggestion method for map search provided by Embodiment 1 of the present invention mainly includes two implementation stages in this embodiment: an offline stage and an online stage. In the offline stage, the establishment of the database used for providing search suggestions is mainly completed. In the embodiment of the present invention, because it is mainly used for map search, the database used is called POI index library; the online stage mainly completes the real-time capture of keywords input by users and provides search suggestions. see below figure 1 Describe these two stages in detail.
[0037] Such as figure 1 As shown, the offline phase is mainly step 101:
[0038] Step 101: According to the name of each POI, index is respectively established in the POI index library with the first N characters of each POI name, and the location information of each POI is recorded.
[0039] POI information is pre-collected. There is ...
Embodiment 2
[0063] image 3 It is a structural diagram of a search suggestion device for map search provided by Embodiment 2 of the present invention. The device is usually set up with a server end of a map search engine and interacts with a browser or a client terminal used by a user. The device is based on a pre-established POI index library, which records the coordinate positions of each POI, such as image 3 As shown, the device includes: an input acquisition unit 01 , an index table query unit 02 and a search suggestion unit 03 . It further includes: an index database building unit 04 , a positioning unit 05 and a distance calculation unit 06 .
[0064] Among them, the index building unit 04 completes the operations in the offline phase, and all other units complete the operations in the online phase.
[0065] Specifically, the index library building unit 04 is used to create a POI index library, and in the POI index library, the first N characters of each POI name are respectively...
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